| 单词 | infra-red |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔eye〕An infra-red eye is said to detect the movement of any animal within an angle of 110 degrees at up to 10 metres.据说红外眼能够探测到110度角范围内远至10米的任何动物的活动。柯林斯高阶〔eye〕An infra-red eye is said to detect the movement of any animal within an angle of 110 degrees at up to 10 metres.据说红眼传感器可以检测到110度视角范围内远至10米的任何动物的活动。外研社新世纪〔human〕Infra-red light is invisible to the human eye .红外线是肉眼看不见的。朗文当代By using radar, infra-red sensors and lasers, crews can pick out either moving or stationary targets.通过使用雷达，红外传感器或激光，船员们能分辨出无论是活动的还是固定的目标。剑桥国际Nowadays, smokescreens need to block not only visible light but also the infra-red sights that soldiers use to spot targets.现在,烟幕不仅需要能够遮挡可见光,还要求能挡住士兵用来发现目标的红外线。剑桥国际The alarm emits infra-red rays which are used to detect any intruder.警报器可发出红外线，用于检测是否有人闯入。剑桥国际The remote control works by sending infra-red impulses to a receiver in the video recorder.遥控器靠向录像机上的接收器发射红外脉冲而运作。剑桥国际 |
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